WIRELESS POWER TRANSMISSION DEVICE, AND ELECTRONIC DEVICE COMPRISING SAME

• Main Authors: PARK, Jaeseok, PARK, Jaehyun, GU, Beomwoo, YEO, Sungku, SHIN, Jaesun
• Format: Patent
• Language: English; French; Korean
• Published: 06.07.2023
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; BASIC ELECTRONIC CIRCUITRY; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; RESONATORS; SYSTEMS FOR STORING ELECTRIC ENERGY; TESTING

An electronic device, according to various embodiments of the present disclosure, comprises a processor, a battery, and a wireless power transmission unit, the wireless power transmission unit comprising: a power amplifier circuit including a switch circuit, a filter circuit, and a series resonant circuit; a power transmission circuit for transmitting power to the outside; a matching circuit for matching the impedance of the power amplifier circuit and the power transmission circuit; and a negative voltage detection circuit for detecting a negative voltage generated in the filter circuit, wherein the negative voltage detection circuit may comprise a voltage dividing circuit including a positive voltage power supply and a plurality of resistors, a voltage sensor, and a low-pass filter. Un dispositif électronique, selon divers modes de réalisation de la présente divulgation, comprend un processeur, une batterie et une unité de transmission d'énergie sans fil, l'unité de transmission d'énergie sans fil comprenant : un circuit amplificateur de puissance comprenant un circuit de commutation, un circuit filtrant et un circuit résonant en série ; un circuit de transmission d'énergie pour transmettre de l'énergie vers l'extérieur ; un circuit d'adaptation pour adapter l'impédance du circuit amplificateur de puissance et du circuit de transmission d'énergie ; et un circuit de détection de tension négative pour détecter une tension négative générée dans le circuit filtrant, le circuit de détection de tension négative pouvant comprendre un circuit de division de tension comprenant une alimentation électrique à tension positive et une pluralité de résistances, un capteur de tension et un filtre passe-bas. 본 개시의 다양한 실시예에 따른 전자 장치는 프로세서, 배터리 및 무선 전력 송신부를 포함하며, 상기 무선 전력 송신부는 스위치 회로, 필터 회로 및 직렬 공진 회로를 포함하는 전력 증폭 회로, 전력을 외부로 전송하는 전력 송신 회로, 상기 전력 증폭 회로와 상기 전력 송신 회로의 임피던스를 매칭하는 매칭 회로 및 상기 필터 회로에서 발생하는 음전압을 감지하는 음전압 감지 회로를 포함하며, 상기 음전압 감지 회로는 양전압 공급 전원 및 복수 개의 저항을 포함하는 전압 분배 회로, 전압 센서 및 로우 패스 필터를 포함할 수 있다.